Payment
"top up account" implies that the money is not "there", and by that I mean in your MQL5 Account Balance.
"failed", means that the method you have chosen to fund the account or the purchase is not being accepted, be that via PayPal, via Debit/Credit Card, etc.
Without more details, we cannot offer much assistance.
Please note, that we are just users like you and any help we may give will be based on our experiences using the system and not any kind of official guidance.
Broker platform? Please note that the MQL5 Account has nothing to do with your trading account by your broker.
EDIT: Show screenshots or else we have no idea what you may be talking about!